Răspuns :
A+[(45:9-16:4)×(1+140:4)]=145
A+[(5-4)×(1+35)]=145
A+1×36=145
A+36=145
A=145-36
A=109
A+[(5-4)×(1+35)]=145
A+1×36=145
A+36=145
A=145-36
A=109
a+[(45:9-16:4)×(1+140:4)]=145
a+[(5-4)×(1+35)]=145
a+(1×36)=145
a+36=145
a=145-36
a=109
a+[(5-4)×(1+35)]=145
a+(1×36)=145
a+36=145
a=145-36
a=109